diff options
Diffstat (limited to 'lib/CodeGen/LiveIntervalAnalysis.cpp')
| -rw-r--r-- | lib/CodeGen/LiveIntervalAnalysis.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp index 4412c1b020..24adf364e7 100644 --- a/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -1095,6 +1095,12 @@ rewriteInstructionForSpills(const LiveInterval &li, const VNInfo *VNI, NewVReg = mri_->createVirtualRegister(rc); vrm.grow(); CreatedNewVReg = true; + + // The new virtual register should get the same allocation hints as the + // old one. + std::pair<unsigned, unsigned> Hint = mri_->getRegAllocationHint(Reg); + if (Hint.first || Hint.second) + mri_->setRegAllocationHint(NewVReg, Hint.first, Hint.second); } if (!TryFold) |